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C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 47 x 100mm (4x2)
Discover the incredible strength and versatility of our C16 Timber Joists. These structural wood pieces are kiln dried and expertly pressure treated, making them resistant to wood-destroying fungi and ideal for both indoor and outdoor projects. With... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 47 x 75mm (3x2)
Due to the size of this 3x2 C16 graded timber carcassing, we recommended using it purely for vertical non-load bearing stud positions. C16 Timber Joists, expertly crafted for those who seek durability and reliability in construction projects. These... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 47 x 150mm (6x2)
Transform your outdoor spaces with our Timber Floor Joist, designed specifically for external use, making them perfect for decking joists. These robust timber joists are your go-to solution for projects requiring reliable structural support in... -
C16 Timber Decking Joists UC4 Treated Brown Incised Kiln Dried Regularised FSC 47 x 100mm (4x2)
These UC4 Treated Brown Incised Kiln Dried Regularised joists are the backbone of a durable and sustainable deck, offering exceptional support for your decking planks. Crafted from premium load bearing C16 graded conifer timber, including spruce and fir,... -
C16 Timber Decking Joists UC4 Treated Brown Incised Kiln Dried Regularised FSC 47 x 150mm (6x2)
C16 deck joists are perfect for supporting your decking area, as they sit under your decking planks. This brown timber carcassing is UC4 treated, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 100mm (4x2)
C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber UC2 Treated Kiln Dried Regularised PEFC 47 x 75mm (3x2)
£3.03 - £17.43 per piece (Ex VAT)£3.64 - £20.92 per piece (Inc VAT)C16 graded carcassing is a structural timber commonly used for stud walls, roof and floor joists, and structural joinery. C16 is normally the grade that is produced from faster grown UK timber. It is machined to have rounded edges, smooth faces, and... -
C16 Timber Untreated Kiln Dried Regularised FSC 47 x 75mm (3x2)
C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber Untreated Kiln Dried Regularised FSC 47 x 75mm (3x2)
£2.80 - £16.10 per piece (Ex VAT)£3.36 - £19.32 per piece (Inc VAT)C16 graded 3x2 timber carcassing is typically used for structural timber commonly used for stud walls, roof and floor joists, and structural joinery. However, as this is only 3x2, it's main usage is for vertical non-load bearing stud positions. C16 is... -
C16 Timber Untreated Kiln Dried Regularised PEFC 47 x 75mm (3x2)
£2.80 - £16.10 per piece (Ex VAT)£3.36 - £19.32 per piece (Inc VAT)3x2 C16 graded timber carcassing is commonly used for vertical non-load bearing stud positions. C16 is normally the grade that is produced from faster grown UK timber, however this is imported timber so it is slower grown foreign timber. It is machined... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 200mm (8x2)
C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 175mm (7x2)
C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 47 x 125mm (5x2)
Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. Regularised timber has... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 150mm (6x2)
£5.60 - £32.20 per piece (Ex VAT)£6.72 - £38.64 per piece (Inc VAT)C16 graded carcassing is a structural timber commonly used for stud walls, roof and floor joists, and structural joinery. C16 is normally the grade that is produced from faster grown UK timber. However, this C16 timber is imported into the UK and... -
C16 Timber Decking Joists UC4 Treated Green Incised Kiln Dried Regularised FSC 47 x 100mm (4x2)
C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 47 x 200mm (8x2)
C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 47 x 225mm (9x2)
Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will not be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. Regularised timber... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 150mm (6x2)
C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 47 x 175mm (7x2)
C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 125mm (5x2)
C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 125mm (5x2)
£4.67 - £26.83 per piece (Ex VAT)£5.60 - £32.20 per piece (Inc VAT)C16 graded carcassing is a structural timber commonly used for stud walls, roof and floor joists, and structural joinery. C16 is normally the grade that is produced from faster grown UK timber.However, this C16 timber is imported into the UK and... -
C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 75 x 100mm (4x3)
C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 200mm (8x2)
£7.47 - £42.93 per piece (Ex VAT)£8.96 - £51.52 per piece (Inc VAT)C16 graded carcassing is a structural timber commonly used for stud walls, roof and floor joists, and structural joinery. C16 is normally the grade that is produced from faster grown UK timber. However, this C16 timber is imported into the UK and... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 225mm (9x2)
C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher...
Rough Sawn Timber
What is Structural Carcassing Timber?
Often referred to as carcassing timber, this type of wood is most commonly used in structural applications that involve the timber being used in an area that won’t be seen, and typically comes in three gradings:
- C16 Timber
- C24 Timber
- Part Graded Timber
Do I need Treated Structural Timber?
If the timber is going to be placed in an area where attacks from external problems such as moisture or fungal attacks, are likely to cause major problems, then we strongly recommend purchasing treated structural timber.
For all the following applications, we generally recommend using a treated structural timber:
- Roof Rafters
- Timber Framing
- Ceiling Joists
- Floor Joists
- Deck Joists
I need a Sawn Finish Structural Timber
Sawn Carcassing Timber has largely been replaced in UK stockists with “eased edge” stock being introduced in the UK in 2004.
Eased Edged means that the timber is semi-surfaced and finished to a uniform finish that is relatively smooth. Four corners are radiused to reduce the likelihood of splinters.
Most of our branches do hold stock of sawn boards that are either treated or untreated. However, if you require a sawn unsurfaced finish, please contact your nearest branch, who will be able to source this as a special item to meet your requirements. Most sizes can be obtained within 5 to 10 working days.
Confused about C16 and C24 structural timber and which grade you will need? Your nearest branch will be more than happy to help.